We can see ~4,500 stars by eye & 100,000 using 50mm binoculars, out of 70 billion trillion stars in observable sky https://t.co/9fXDmXfhWG

2 1
2016-12-11

We can see ~4,500 stars by eye & 100,000 using 50mm binoculars, out of 70 billion trillion stars in observable sky https://t.co/9fXDmXfhWG

0 0
2016-12-11

Comet Lovejoy continues to be readily observable as it passes through Triangulum:
http://t.co/opqoHkq6gk

14 6
2015-01-28